Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

U631H64BDK25G1 Datasheet(PDF) 1 Page - Simtek Corporation

Part # U631H64BDK25G1
Description  SoftStore 8K x 8 nvSRAM
Download  13 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  SIMTEK [Simtek Corporation]
Direct Link  http://www.simtek.com
Logo SIMTEK - Simtek Corporation

U631H64BDK25G1 Datasheet(HTML) 1 Page - Simtek Corporation

  U631H64BDK25G1 Datasheet HTML 1Page - Simtek Corporation U631H64BDK25G1 Datasheet HTML 2Page - Simtek Corporation U631H64BDK25G1 Datasheet HTML 3Page - Simtek Corporation U631H64BDK25G1 Datasheet HTML 4Page - Simtek Corporation U631H64BDK25G1 Datasheet HTML 5Page - Simtek Corporation U631H64BDK25G1 Datasheet HTML 6Page - Simtek Corporation U631H64BDK25G1 Datasheet HTML 7Page - Simtek Corporation U631H64BDK25G1 Datasheet HTML 8Page - Simtek Corporation U631H64BDK25G1 Datasheet HTML 9Page - Simtek Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 1 / 13 page
background image
U631H64
Obsolete - Not Recommended for New Designs
1
March 31, 2006
STK Control #ML0045
Rev 1.0
High-performance CMOS non-
volatile static RAM 8192 x 8 bits
25, 35 and 45 ns Access Times
12, 20 and 25 ns Output Enable
Access Times
Software STORE Initiation
(STORE Cycle Time < 10 ms)
Automatic STORE Timing
105 STORE cycles to EEPROM
10 years data retention in
EEPROM
Automatic RECALL on Power Up
Software RECALL Initiation
(RECALL Cycle Time < 20
μs)
Unlimited RECALL cycles from
EEPROM
Unlimited Read and Write to
SRAM
Single 5 V ± 10 % Operation
Operating temperature ranges:
0 to 70
°C
-40 to 85
°C
QS 9000 Quality Standard
ESD characterization according
MIL STD 883C M3015.7-HBM
(classification see IC Code
Numbers)
RoHS compliance and Pb- free
Packages: PDIP28 (300 mil)
SOP28 (330 mil)
Description
The U631H64 has two separate
modes of operation: SRAM mode
and nonvolatile mode. In SRAM
mode, the memory operates as an
ordinary static RAM. In nonvolatile
operation, data is transferred in
parallel from SRAM to EEPROM or
from EEPROM to SRAM. In this
mode SRAM functions are disab-
led.
The U631H64 is a fast static RAM
(25, 35, 45 ns), with a nonvolatile
electrically
erasable
PROM
(EEPROM) element incorporated
in each static memory cell. The
SRAM can be read and written an
unlimited number of times, while
independent nonvolatile data resi-
des in EEPROM. Data transfers
from the SRAM to the EEPROM
(the STORE operation), or from the
EEPROM
to
the
SRAM
(the
RECALL
operation) are initiated
through software sequences.
The U631H64 combines the high
performance and ease of use of a
fast SRAM with nonvolatile data
integrity.
Once a STORE cycle is initiated,
further input or output are disabled
until the cycle is completed.
Because a sequence of addresses
is used for STORE initiation, it is
important that no other read or
write accesses intervene in the
sequence or the sequence will be
aborted.
Internally, RECALL is a two step
procedure. First, the SRAM data is
cleared and second, the nonvola-
tile information is transferred into
the SRAM cells.
The RECALL operation in no way
alters the data in the EEPROM
cells. The nonvolatile data can be
recalled an unlimited number of
times.
SoftStore 8K x 8 nvSRAM
Pin Configuration
Pin Description
Top View
1
n.c.
VCC
28
2
A12
W
27
4
A6
A8
25
5
A5
A9
24
3
A7
n.c.
26
6
A4
A11
23
7
A3
G
22
8
A2
A10
21
12
DQ1
DQ5
17
9
A1
E
20
10
A0
DQ7
19
11
DQ0
DQ6
18
13
DQ2
DQ4
16
14
VSS
DQ3
15
PDIP
SOP
Signal Name
Signal Description
A0 - A12
Address Inputs
DQ0 - DQ7
Data In/Out
E
Chip Enable
G
Output Enable
W
Write Enable
VCC
Power Supply Voltage
VSS
Ground
Features


Similar Part No. - U631H64BDK25G1

ManufacturerPart #DatasheetDescription
logo
List of Unclassifed Man...
U631H64 ETC-U631H64 Datasheet
194Kb / 12P
   SoftStore 8K x 8 nvSRAM
More results

Similar Description - U631H64BDK25G1

ManufacturerPart #DatasheetDescription
logo
List of Unclassifed Man...
U631H64 ETC-U631H64 Datasheet
194Kb / 12P
   SoftStore 8K x 8 nvSRAM
logo
Cypress Semiconductor
STK11C68 CYPRESS-STK11C68 Datasheet
556Kb / 16P
   64 Kbit (8K x 8) SoftStore nvSRAM
STK11C68-5 CYPRESS-STK11C68-5 Datasheet
536Kb / 15P
   64 Kbit (8K x 8) SoftStore nvSRAM
logo
Simtek Corporation
U631H256 SIMTEK-U631H256 Datasheet
246Kb / 13P
   SoftStore 32K x 8 nvSRAM
logo
List of Unclassifed Man...
U631H16 ETC-U631H16 Datasheet
275Kb / 12P
   SOFTSTORE 2K X 8 NVSRAM
U631H256 ETC1-U631H256 Datasheet
140Kb / 13P
   SoftStore 32K x 8 nvSRAM
logo
Simtek Corporation
U631H256XS SIMTEK-U631H256XS Datasheet
225Kb / 15P
   SoftStore 32K x 8 nvSRAM Die
logo
Cypress Semiconductor
STK11C88 CYPRESS-STK11C88 Datasheet
474Kb / 15P
   256 Kbit (32K x 8) SoftStore nvSRAM
logo
Simtek Corporation
UL631H256 SIMTEK-UL631H256 Datasheet
180Kb / 13P
   SimtekLow Voltage SoftStore 32K x 8 nvSRAM
logo
List of Unclassifed Man...
U630H64 ETC1-U630H64 Datasheet
210Kb / 14P
   HardStore 8K x 8 nvSRAM
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.NET
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com